Hardly any player in the NBA comes cheap, yet some talent costs far more than others, and in more ways than one.
Issuing lucrative contracts is always dangerous. If the athlete in question doesn't meet expectations or goes bust altogether, his annual salary can act as a no-trade clause in the sense he can't be moved.
That isn't because the player doesn't want to be dealt or his team doesn't want to deal him, but because the trade simply can't be done—or rather, is near impossible to get done.
There is no such thing as an immovable contract, yet this doesn't mean there aren't deals that come close. Because quite frankly, there are plenty of covenants that are about as easy to relocate as the Sacramento Kings.